Fairfax Station's housing stock centers on 1982, which is a different generation of hardware than you'd find in an older, denser part of the service area, and it matters for maintenance because the springs, cables, and opener gear ratios sold for doors built then aren't identical to what's standard now. The area sits in a cold, severe climate band, and forty-plus winters of temperature swings work on old spring steel and track alignment whether or not a door ever gets used hard. With roughly 4,159 households out this way, most of them owner-occupied houses from that same build window, the pattern of wear tends to repeat house to house - which is useful, because it means we generally know what we're looking at before we open the door panel.